22077109 has 2 divisors, whose sum is σ = 22077110. Its totient is φ = 22077108.

The previous prime is 22077061. The next prime is 22077119. The reversal of 22077109 is 90177022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18037009 + 4040100 = 4247^2 + 2010^2 .

It is a cyclic number.

It is not a de Polignac number, because 22077109 - 2²³ = 13688501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22077119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11038554 + 11038555.

It is an arithmetic number, because the mean of its divisors is an integer number (11038555).

Almost surely, 2^22077109 is an apocalyptic number.

It is an amenable number.

22077109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22077109 is an equidigital number, since it uses as much as digits as its factorization.

22077109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 22077109 is about 4698.6284168893. The cubic root of 22077109 is about 280.5309186889.

It can be divided in two parts, 2207 and 7109, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 22077109 in words is "twenty-two million, seventy-seven thousand, one hundred nine".